Gas-engine-starting device.



W.'A. HANSEN. GAS ENGINE STARTING DEVICE. APPLICATION FILED JULY 3, 1909.

Patented Nov. 29, 1910.

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lllll I @gaaaz W. A. HANSEN.

GAS ENGINE STARTING DEVICE APPLIOATIQH FILED JULY 3, 1909.

977,007. Patented Nov. 29,1910 7' a sums-51mm 2. I

UNITED STATES PATENT, OFFICE.

WILLIAM A. HANSEN, OF SAN FRANCISCO, CALIFORNIA.

GAS-ENGINE-STARTING DEVICE.

To all whom it may concern.- 1

Be it known that I, WILLIAM A. HANSEN, citizen of the Unit-ed States, residing in the city and county of San Francisco and State of California, have invented new and useful Improvements in Gas-Engine-Starting Devices, of which the following is a specification.

' y invention relates to attachments for internal combustion engines.

It is designed especially to provide a means for scavenging the cylinder or cylinders of the burned gases which may remain therein when the engine stops, and to introduce into the cylinder a charge or charges of explosive mixture in readiness to beignited when the switch is turned to complete an electrical circuit through the spark plugs or other igniting devices. I

It consists in a combination of parts and details of construction which will be more the accomcontrolling the flow of the mixture to and from the cylinder. Fig. 4: is a modification of said device. Fig. 5 IS a sectional View of one cylinder showing the connection of my device. Fig. 6 is a partial side elevation of four cylinders with the main and auxiliary carbureters and connecting pipes of my invention.

It is the objcet of my invention to provide a convenient means for scavenging or cleansing the cylinders ofsuch burned gases and residue as may remain after the enginehas' stopped, and to introduce into theengine a charge of rich, combustible vapor which. will readilyignite when the ignition devices are caused to operate. and thus start the engine without other'labor.

As shown in the drawings, A represents the ordinary carbureter of any well-known or suitable description.

2 is the small auxiliary vaporizer or carbureter which may be conveniently attached to the carbureter A. The construction of this auxiliary vaporizer is well shown in Fi 1. Gasolene or other hydrocarbon liqnit? enters the auxiliary vaporizer at 2, and may be supplied from the float chamber of p the carbureter A through a pipe 3, Fig.'.6.

Specification of Letters Patent.

Application filed July 3, 190a Patented Nov. 29, 1910.

Serial No. 505,906.

The flow of the gasolene in this portion of the apparatus is controlled by a needlevalve 4.

Air under pressure is admitted through 5 into an interior chamber, through which chamber passes a short tube 6. This tube receives the gasolene which is admitted through the opening controlled by the needle-valve 4:. Around the discharge end of the manner of an injector, and this draws the gasolene through the tube 6 and subdivides it into a fine spray, mixing it also with the air which is thus admitted.

Any suitable source of supply for air may be utilized. A convenient manner will be to have a tank or receiver which is charged with air during the running of the engine, and always contains a sufficient supply. hen the air is turned on it will, as before describ'e d, form a rich mixture with the gasolene, and this passes upwardly through the pipe or passage 7 to the distributing chamber 8. This chamber has pipes or passages 9 leading toany number of cylinders which may compose the particular engine to which the a paratus is applied. The ap-' plication of i Fig. 6.

Each of the branch pipes is provided with a double cock, as at 10, Fig. 8. 11 is'an inlet passage,and 12 is an outlet passage. A small pipe 13 connects this passage with an intake opening'14. on one side of the cylinder, as shown in Fig. 5. The explosive mixture is admitted into a pocket or chamber between the spark plug and the main inlet valve, thus insuring a rich mixture around the spark plug. The gas then flows into the cylinder, and filling this, it then discharges through the passage 15. These passages are closed in unison by cock 16, Fig. 3. This cock has an arm 17 and a connecting rod 18 leading to any desired convenient point for operation. The passages are thus, all opened and closed n unison.

our cylinders is shown 1n pipe 22 and into the supplemental va orizer at 5, as before described. It*will t us be seen that when, by means of the rod or connection'18, the arm 17 is moved to open the cock, the air passage in cock 19' is opened simultaneously with the other passages.

The air will then rush into the auxiliary vaporizer, drawin in gasolene, asbefore described, passing t ence into the distributer 8,and' from thence into the branch pipes 9 to-the dilier'ent cylinders, which-are thus charged. v p

In Fig? 4,- I have shown a modified. form of double cock; In this case the gas enters at 11, passes down through the passage 12, and discharges into the cylinder through the passage 13"atright angles, as indicatedby the arrow. The as being thus forced under pressure fills t e cylinder and commences to discharge through the passage 15 assoon as the cylinders are filled, after which the cooks may be closed, and upon proper ignition through the spark plugs, or equivalent devices, the engine will be started, after'which it-will draw its regular supply from the'main carbureter in the usual manner. 1

Having thus described my invention, what Iclaim and desire'to secure by Letters Patent is- 1. The combination with an internal com- .bustion engine, and a main carbureter, of a supplemental vaporizer, a hydrocarbon sup ply device between the main carbureter and said vaporizer, and I a *control'lin needlevalve, a chamber, means for admitting air .under pressure into said chamber, a pipe .conductlng gasolene through said chamber,

said chamber having .an annular exterior passage for the air, and a distributing chamber into which the mixture is admitted and from which it is delivered to the cylinders.

2. The combination with an internal combustion engine, and the main carbureter, of 45.

a supplemental carbureter, means for admitting angi controlli ng a supply of hydrocarbon thereto from the main carbureter,

'a mixing and distributing chamber, pipes leading therefrom, a 'cocklocated at one side of the cylinder havinga plurality of passages therethrough, means for opening andclosing it, and a pipe leading from-one.

passage of said cock and discharging into a chamber. contiguous to the igniting device of the engine, from which the charge acts to scavenge [the-cylinder and discharge through the first-mentioned cockq 3. The combination w1 h an internal coma bustion engine, and a supplemental car-i bureter, of means to control theflow ofgas in g witnesses.

from the carbureter, said .me'ansflnc-luding cocks having a plurality of assages, one of which communicates with t e intake openin of the cylinder, and the other with the ex aust.

4. The combination with an internal combustion engine, of a means to supply an explosive starting mixture thereto, said means including cocks having a plurality of passages, one of which communicates with the cylinder intake opening, and the other with the exhaust, and mechanism by whicl. said passages are opened and closed in unison. a

5. The combination with an internal combustion engine, and a supplemental carbureter, of cocks having a plurality of passages, certain' of which communicate respectively with the intake and the exhaust,

and certain with the supplemental carbureter and a source of air supply.

6. The combination with an internal combustion engine, and a supplemental carbureter, of cocks having a plurality of passages, one of which connects the carbureter with the intake of the cylinder, certain 'others connect the carbureter with a source of air supply, and connect the cylinder combustion chamber with the exhaust.

, 7. Thecombination with an internal com-' bustion engine, and a supplemental carbureter, of cocks having a plurality of passages, one of' which connects the carbureter with the intake of the cylinder, certain others connect the carbureter with a source of air supply, and connect the cylinder com bustion chamber with the exhaust, and man-- ually controlled mechanism to rotate the plug of the'cock and open and close all the passages substantially in unison.

8. The combination with an internal combustion engine and a main carbureter, of a supplemental vaporizer, means for regulating the supply of hydrocarbon thereto from the main carbureter, means for admitting and mixing air under pressure with I the hydrocarbon in said supplemental vaporizer, a distributing chamber connected to said supplemental vaporizer, pipes leading therefrom to the engine cylinders, manually controlled cocks in said cylinders to which the said pipes are connected, each having a scavenging passage, and passages discharging at right angles to said scavenging passages.

In testimony whereof I have hereunto set my hand in thepresence of two subscribing WILLIAM A. HANSEN.

Witnesses:

CHARLES EDnLMAN,

C. O. Coon. 

